Demon Bone Tiles (Seraptis)
Activate Cast a Spell (add 1 action)
These bones from different types of demons can be used to form temporary barriers. When you crush the bone fragments and blow the resulting dust around yourself as you cast Shield, the shield appears as a bone bulwark shaped like the demon's face.
When use Shield Block with the spell, the barrier explodes into many bone fragments. The shards cause 2d8 bleed damage to each creature adjacent to you that fails a DC 34 reflex save. This persistent bleed damage is unholy and can be stopped with an Interact action to remove the shards.
Traits
Items that have the catalyst trait are consumable material spell components that alter or magnify specific spells. Activating a catalyst is part of Casting the Spell. The catalyst might increase the number of actions required to Cast the Spell, as indicated in the catalyst's Activate entry. Additionally, the spell gains the manipulate trait if it didn't already. Because the catalyst becomes part of the spell, you can draw the catalyst as part of Casting the Spell.
An item with this trait can be used only once. Unless stated otherwise, it's destroyed after activation. Consumable items include alchemical items and magical consumables such as scrolls and talismans. When a character creates consumable items, they can make them in batches of four.
Something with the magical trait is imbued with magical energies not tied to a specific tradition of magic. Some items or effects are closely tied to a particular tradition of magic. In these cases, the item has the arcane, divine, occult, or primal trait instead of the magical trait. Any of these traits indicate that the item is magical.
Effects with the unholy trait are tied to powerful magical forces of cruelty and sin. They often have stronger effects on holy creatures. Creatures with this trait are strongly devoted to unholy causes, and often have weakness to holy. If a creature with weakness to unholy uses an unholy item or effect, it takes damage from its weakness.